package HTML::CalendarMonth::DateTool::DateTime;
{
$HTML::CalendarMonth::DateTool::DateTime::VERSION = '1.26';
}
# Interface to DateTime
use strict;
use warnings;
use Carp;
use base qw( HTML::CalendarMonth::DateTool );
use DateTime;
sub dow1st_and_lastday {
my($self, $month, $year) = @_;
$month ||= $self->month;
$year ||= $self->year;
my $lastday = $self->_last_dom_dt($year, $month);
my $dow1st = $self->dow(1);
($dow1st, $lastday->day);
}
sub day_epoch {
my($self, $day, $month, $year) = @_;
$day || croak "day required.\n";
$month ||= $self->month;
$year ||= $self->year;
my $dt = $self->_new_dt($year, $month, $day);
$dt->epoch;
}
sub dow {
my($self, $day, $month, $year) = @_;
$day || croak "day required.\n";
$month ||= $self->month;
$year ||= $self->year;
my $dt = $self->_new_dt($year, $month, $day);
# convert from 1..7, starting with Mon, to 0..6, starting with Sun
$dt->dow % 7;
}
sub add_days {
my($self, $delta, $day, $month, $year) = @_;
defined $delta || croak "delta (in days) required.\n";
$day || croak "day required.\n";
$month ||= $self->month;
$year ||= $self->year;
my $dt = $self->_new_dt($year, $month, $day);
$dt->add(days => $delta);
($dt->day, $dt->month, $dt->year);
}
sub week_of_year {
my($self, $day, $month, $year) = @_;
$day || croak "day required.\n";
$month ||= $self->month;
$year ||= $self->year;
my $dt = $self->_new_dt($year, $month, $day);
# returns ($year, $week)
$dt->week;
}
sub _new_dt {
my $self = shift;
my($year, $month, $day) = @_;
$year or croak "year and month required\n";
my %parms = (year => $year);
$parms{month} = $month if $month;
$parms{day} = $day if $day;
$parms{hour} = 0;
$parms{minute} = 0;
$parms{second} = 0;
DateTime->new(%parms);
}
sub _last_dom_dt {
my $self = shift;
my($year, $month) = @_;
$year && $month or croak "year and month required.\n";
DateTime->last_day_of_month(year => $year, month => $month);
}
1;